# COMAR Title 09 — Maryland Department of Labor

## Subtitle 20 — Board of Plumbing

### Chapter 02 — Enforcement of the Plumbing Law by the Board

#### Regulation .01 Qualifications of Plumbers—How Certificates May Be Issued.

*COMAR 09.20.02.01*

A. All plumbing work shall be performed, or supervised and approved, by a licensed master plumber who is:

  (1) Familiar with its design and purpose; and

  (2) Available to direct and control all journey and apprentice plumbers.

B. The license of a master plumber will be issued in the name of the master plumber.

C. All plumbing work performed, or supervised and approved, by a licensed master plumber shall be of ordinary worker-like skill and quality and shall conform both to the regulations promulgated by the Board and to applicable local laws and regulations.